Home / 39,800.03-54,923.64-21,895.05

Finding the Fourth Proportional to 39,800.03, 54,923.64 and 21,895.05

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Solution

The fourth proportional to 39,800.03, 54,923.64 and 21,895.05 is: 30,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.03 : 54,923.64 = 21,895.05 : x
  2. Step 2: Convert to fraction form
    39,800.03/54,923.64 = 21,895.05/x
  3. Step 3: Cross multiply
    39,800.03x = 54,923.64 × 21,895.05
  4. Step 4: Simplify right side
    39,800.03x = 1,202,555,843.98
  5. Step 5: Solve for x
    x = 1,202,555,843.98/39,800.03
  6. Step 6: Final answer
    x = 30,214.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.